Test Description

The numbers below refer to the step numbers in the diagnostic procedures.

1. 2
   
   This step verifies problem is present at idle.
2. 4
   
   A voltage reading of less than 4 volts or 5 volts or more at MAF sensor signal circuit indicates a fault in wiring or poor connection.
3. 5
   
   This step verifies that ignition voltage and ground are available at MAF sensor.